Frequently Asked Questions
These are some of the questions that we frequently get asked.
- What Is Stainless Steel?
- When was stainless steel discovered?
- What is stainless steel used for?
- Does stainless steel corrode?
- What forms of corrosion can occur in stainless steels?
- How many types of stainless steel are there?
- What are the correct standards for stainless steel?
- Is stainless steel non-magnetic?
- Can I use stainless steel at low temperatures?
- Can I use stainless steel at high temperatures?
- What surface finishes are available on stainless steels?
- How do I choose which stainless steel to use?
- What is 'multiple certification'?
What Is Stainless Steel?
Stainless steel is an alloy of Iron with a minimum of 10.5% Chromium. Chromium produces a thin layer of oxide on the surface of the steel known as the 'passive layer'. This prevents any further corrosion of the surface. Increasing the amount of Chromium gives an increased resistance to corrosion.
Stainless steel also contains varying amounts of Carbon, Silicon and Manganese. Other elements such as Nickel and Molybdenum may be added to impart other useful properties such as enhanced formability and increased corrosion resistance.